private void markerUpdate() {
        Handler mainHandler = new Handler(Looper.getMainLooper());

        MapsActivity.this.runOnUiThread(() -> {
            TimerTask timerTask = new TimerTask() {
                @RequiresApi(api = Build.VERSION_CODES.O)
                @Override
                public void run() {
                    Runnable myRunnable = () -> {
                        try {
                            GetUrlContentTask.cleanMap();
                        }catch (NullPointerException e){
                            e.printStackTrace();
                        }};
                    mainHandler.post(myRunnable);

                    new GetUrlContentTask().execute("https://www.stops.lt/klaipeda/gps.txt?1548774463");
//                    new GetUrlContentTask().execute("https://www.stops.lt/klaipeda/gps.txt?"+ String.valueOf(Instant.now().getEpochSecond()));
                }
            };
            new Timer().schedule(timerTask,50,10000);

        });
    }